Medium size square-shaped towel featuring the 2ch ASCII art mascot Kuma, probably best known for being adapted into another, much dirtier meme.
Kuma assumes his classic pose. Top of the towel reads "Work's over!" Bottom of the towel reads "Let's go drinking, kuma (bear)!" Kuma says this because he is a bear.
Bought in Japan in the mid 2000s (likely 2004, 20 years ago) and only ever opened once, to take pictures for the purposes of this auction. From a company called "Sukueya" which appears no longer to exist, going by the URL on the towel.